ObjectiveTo evaluate the consistency of HER2 gene status before and after neoadjuvant chemotherapy in breast cancer by FISH (fluorescence in situ hybridization) and IHC (immunohistochemistry) techniques,and analyze the factor of the difference in the result and the feasibility of HER2 gene tested by FISH in the neoadjuvant chemotherapy breast cancer patients.Methods FISH and IHC for HER2 gene expression status was performed on the archival paraffin-embedded sections of breast cancer tissues before and after neoadjuvant chemotherapy from 135 Chinese female patients,x2 test of paired comparison of enumeration data and Kappa analysis were used to compare the difference and consistency of this two techniques.ResultsThe detection rate of HER2 status in punctured cancer tissues before neoadjuvant chemotherapy by FISH and HER2 did not show statistical difference in our research while the opposite result were showed in cancer tissues after neoadjuvant chemotherapy.Moreover,the two techniques of HER2 test were less concordant in patients accepted taxanes neoadjuvant chemotherapy than CAF treatment.ConclusionsThe consistency of FISH and IHC techniques of cancer tissues before neoadjuvant chemotherapy gained advantage compared to the ones after neoadjuvant chemotherapy.Patients received neoadjuvant chemotherapy especially taxanes should take the test of HER2 gene status by FISH technique.

A method for the determination of decabrominated diphenyl ether(decaBDE) in sediment samples at trace level using dispersive liquid-liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) and high performance liquid chromatography-ultraviolet detector (HPLC-UV) has developed.Based on the data of interactive orthogonal array design, the optimization experimental conditions were obtained with BP artificial neural network model: 1.00 mL methanol as dispersive solvent, 35.0 μL dodecanol as extractive solvent, 10.00% NaCl, pH 5, and extraction in 10 min.The extraction recovery (ER) was 62.22% at the extraction conditions.The proposed method exhibited a wide linear range(3.5-1400 ng/g) with R~2 =0.9921.The limit of detection (LOD) and the limit of quantification (LOQ) of this method were 2.3 pg/g(S/N =2) and 5.6 pg/g(S/N = 5), respectively.The recoveries of real samples at different spiking levels of decaBDE were 104.2%, 98.4% and 97.7%, respectively.Extraction, concentration and separation procedures for decaBDE from the sediment sample were carried out by one step, and hence, the process of DLLME-SFO for decaBDE was shortened.

Research on the association between maternal periodontal disease and the risk of preeclampsia has generated inconsistent results. This meta-analysis was conducted to evaluate the association between maternal periodontal disease and the risk of preeclampsia. A literature search of PubMed and Embase was performed to identify relevant papers published before March 2013. Only observational studies that assessed maternal periodontal disease and the risk of preeclampsia were selected. Patients' periodontal status was examined at different time points during pregnancy or after delivery (at 14-32 weeks of gestation, within 48 h prior to or within 5 days after delivery). Pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were calculated for cases and controls. Cases were defined as women with concurrent hypertension and proteinuria after 20 weeks of gestation. Eleven studies involving 1118 women with preeclampsia and 2798 women without preeclampsia were identified and analyzed. Women with periodontal disease before 32 weeks of gestation had a 3.69-fold higher risk of developing preeclampsia than their counterparts without periodontal disease (OR=3.69; 95% CI=2.58-5.27). Periodontal disease within 48 h prior to delivery was associated with a 2.68-fold higher risk of preeclampsia (OR=2.68; 95% CI=1.39-5.18). Pregnant women with periodontal disease within 5 days after delivery had a 2.22-fold higher risk of preeclampsia than women without periodontal disease (OR=2.22; 95% CI=1.16-4.27). In conclusion, this meta-analysis suggests that maternal periodontal disease is an independent predictor of preeclampsia.

Objective:To investigate the expression of inducible costimulatory ( ICOS) and inducible costimulatory ligand ( ICOSL) on peripheral blood mononuclear cells ( PBMCs ) and their clinical relationship with rheumatoid arthritis ( RA ) patients.Methods:Peripheral blood samples were collected from 85 RA patients and 50 HC in this study.Expression of ICOS and ICOSL on PBMC from the subjects were detected by flow cytometry and real-time polymerase chain reaction( RT-PCR).The alteration of ICOS and ICOSL were observed after hormone therapy in 15 patients with RA and the relationship between their expression level and patients′clinical manifestations were analysed.Results:The ICOS and ICOSL mRNA level of RA patients′PBMCs were significantly higher than that in HC.The expression level of ICOS on CD4+T cells was higher than than that in HC[(7.08±4.72)% vs (3.01+1.39)%,P<0.0001].The expression of ICOSL on monocytes[(5.77±3.45)%vs (3.64±1.43)%,P<0.05] and B cells [(5.78± 4.52)%vs (3.97±1.63)%,P<0.05] were significantly elevated in RA patients.In RA patients with active disease,however,ICOSL expression on monocytes and B cells were increased as compared with those in inactive RA patients [ ( 5.45 ±3.50 )% vs ( 4.04 ± 1.55)%,P=0.036],[(6.59 ±5.74)%vs (5.63±4.30)%,P=0.016].Furthermore,after receiving immunosuppressive therapy, the expressions of ICOS and ICOSL were notably reduced as compared with pre-therapy levels on PBMCs from patients [ ( 5.45 ±3.50)%vs (4.04±1.55)%,P=0.036],[(6.59 ±5.74)%vs (5.63±4.30)%,P=0.016].Conclusion:The high levels of ICOS and ICOSL expression were closely correlated with the degree of disease and therapeutic response,suggesting that ICOS/ICOSL pathway may play a critical role in pathogenesis of RA.

The aim of this study was to explore the inhibitory effect of newly synthesised emodin derivatives on the proliferation of leukemia cell lines and to select the most effective one from these emodin derivatives for further research. Emodin derivatives were synthesized by modifying the structure of emodin. MTT method was used to detect the proliferative inhibition in leukemia cell lines treated with emodin derivatives. The results showed that the half inhibitory concentration (IC50) for K562 cells treated with emodin derivatives E10-19 for 48 h was 0.84 - 12.01 µmol/L. E19 displayed the best anti-proliferative activity, while E16 and E17 did not show effects on K562 cells. Emodin derivative E19 was chosen for treating U937, NB4, Molt-4 and CA-46 cells, their IC50 for 48 h were 0.85, 0.9, 0.76, 0.8 µmol/L respectively. The IC50 of E19 for LQ2 cells was 3.60 µmol/L, and the IC50 range of E19 for normal human peripheral blood mononuclear cells at 48 h was 4.01 - 4.78 µmol/L. It is concluded that emodin derivative E19 can strongly inhibit the growth of leukemia cells and its inhibiting effect on proliferation of leukemia cells has a certain specificity. The specific mechanism of E19 anti-leukemia effect should be further studied.
Cell Proliferation ; drug effects ; Emodin ; analogs & derivatives ; pharmacology ; Humans ; K562 Cells ; Leukemia ; pathology

Objective To investigate the expression of inregrin?_3 and integrin?_1 in breast cancer and its bio- logical significance.Methods Immunohistochemical assay was used to determine the expression of integrin?_3 and integrin?_1 in the breast cancer(32 cases).Results In normal breast tissue,the positive expression rates of integrin?_3 and integrin?_1 were 0 % and 25 %.In the breast cancer tissue,the positive expression rates of integrin?_3 and inte- grin?_1 were 36 % and 81%.Conclusion The integrin?_3 and integrin?_1 are close associated with the biological sig- nificance of breast cancer.To examine its expression is useful to evaluate the aggressive degree,metastatic potential and prognosis in patients with breast cancer.

AIM: To explore the predisposing factors, population characteristics and clinical features of severe fungal keratitis.
METHODS:The data of 233 cases 233 eyes of severe fungal keratitis in my hospital from January, 2008 to November, 2013 was retrospectively reviewed. The predisposing factors, population characteristics and clinical features were analyzed.
RESULTS: In 233 cases of severe fungal keratitis, the number of male patients was 153 ( 65. 7%) and the number ratio of male to female was 1. 9:1. The average age of them was (52. 7±11. 3), and most of them were middle-aged and elderly people living in the rural area (78. 1%) and were farmers ( 66. 1%) with low literacy (59. 7%). In 233 cases, 188 cases (80. 7%) possessed a clear history of ocular trauma, mainly caused by plant-based trauma (60. 9%). 90 cases (57. 3%) were infected with Fusarium, and 47 cases ( 29. 9%) by Aspergillus. The main treatment of severe fungal keratitis was surgery (87. 9%). 83 cases ( 52. 9%) were treated with penetrating keratoplasty, and in Fusarium and Aspergillus infected patients with severe fungal keratitis, 58. 4% ( 80/137 ) were performed with penetrating keratoplasty. In addition, patients treated with eye enucleation or evisceration, 68. 4% (13/19) were infected with Fusarium species.
CONCLUSION: Patients with severe fungalkeratitis in our hospital are mainly elderly male farmers living in rural, because of low economic condition and poor diagnosis consciousness. The main pathogens are Fusarium and Aspergillus species, and the major treatment is penetrating keratoplasty. Most of patients with poor clinical outcomes are infected with Fusarium species.

Functional abdominal pain is one of the most common problems in functional gastrointestinal disorders,and it's also one of the diseases benefit most from traditional Chinese medicine (TCM) treatment.This paper illustrates some key considerations on the study design of traditional Chinese medicine intended for the treatment of FAP based on the latest treatment and evaluation guidelines,technical guidance,professional authority works as well as the latest clinical studies,and combined with experience of clinical trial design.It hopes to offer helps for research designers in this genera.

Objective To study absorption of shegan heji marker components in blood and their excretion in urine and feces of rats, after intragastric administration of shegan heji. Methods LC-MS/MS was used for determination of marker compounds. Rat metabolic cage technology was employed. Results Excretion of marker components were completed 24 hours after administration. Conclusion Ephedrine can be excreted from rats within 24 hours. The possibility of mutual transformation of flavonoids exists in the body. Taking shegan heji will not cause accumulation of ephedrine and flavonoids in the body.

The purpose of this study was to compare the differences of the protein expression profiles between human myeloid leukemia K562 cells and adriamycin-resistant K562/A02 cells, as well as to select novel resistance-related proteins in myeloid leukemia by means of proteomics. The total cellular proteins were separated from K562 and adriamycin-resistant K562/A02 cells by using technique of two dimensional difference in gel electrophoresis (2D-DIGE). Differentially expressed proteins were analyzed by matrix-assisted laser desorption ionization/time of flight-mass spectrometry (MALDI-TOF/MS), and by protein database searching. Moreover, the differentially expressed proteins were verified at protein and mRNA levels by Western blot assay and quantitative real time PCR. The results showed that 8 proteins differentially expressed in adriamycin-resistant K562/A02 cells, among them 2 proteins were identified to be down-regulated and 6 to be up-regulated. These identified proteins involved in the cell energy metabolism, cell proliferation, cell apoptosis, signal transduction, gene transcription and translation respectively. The results assayed by Western blot were similar to those detected by 2D-PAGE. Two up-regulated proteins Stathmin and CrkL were selected for verification in K562 and K562/A02 cells. As a result, the results detected by Western blot were identical with results from 2D-DIGE; real time quantitative PCR assay showed that the changes of CrkL at mRNA level were identical with changes at protein level, but no complete identity of Stathmin changes at mRNA level and protein level was observed. It is concluded that the difference of protein expression profile exists in K562 and K562/A02 cells. Stathmin and CrkL proteins may be involved in the drug resistance and suggest a novel clue for the resistant mechanisms in myeloid leukemia, which is worth further to explore.
Adaptor Proteins, Signal Transducing ; metabolism ; Doxorubicin ; pharmacology ; Drug Resistance, Neoplasm ; Humans ; K562 Cells ; Leukemia ; metabolism ; Nuclear Proteins ; metabolism ; Stathmin ; metabolism